5.4 Special provisions for non-cohesive bulk cargoes
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Statutory Documents - IMO Publications and Documents - International Codes - IMSBC Code – International Maritime Solid Bulk Cargoes Code – Resolution MSC.268(85) - Section 5 – Trimming procedures - 5.4 Special provisions for non-cohesive bulk cargoes

5.4 Special provisions for non-cohesive bulk cargoes

5.4.1 Non-cohesive bulk cargoes are those listed in paragraph 1 in appendix 3 and any other cargo not listed in the appendix, exhibiting the properties of a non-cohesive material.

5.4.2 For trimming purposes, solid bulk cargoes can be categorized as cohesive or non-cohesive. The angle of repose is a characteristic of non-cohesive bulk cargoes which is indicative of cargo stability and has been included in the individual schedules for non-cohesive cargoes. The angle of repose of the cargoes shall establish which provisions of this section apply. Methods for determining the angle of repose are given in section 6.

5.4.3 Non-cohesive bulk cargoes having an angle of repose less than or equal to 30º

These cargoes, which flow freely like grain, shall be carried according to the provisions applicable to the stowage of grain cargoes.footnote The bulk density of the cargo shall be taken into account when determining:

  • .1 the scantlings and securing arrangements of divisions and bin bulkheads; and

  • .2 the stability effect of free cargo surfaces.

5.4.4 Non-cohesive bulk cargoes having an angle of repose greater than 30° to 35° inclusive

These cargoes shall be trimmed according to the following criteria:

  • .1 the unevenness of the cargo surface measured as the vertical distance (Δh) between the highest and lowest levels of the cargo surface shall not exceed B/10, where B is the beam of the ship in metres, with a maximum allowable Δh = 1.5 m; or

  • .2 loading is carried out using trimming equipment approved by the competent authority.

5.4.5 Non-cohesive bulk cargoes having an angle of repose greater than 35°

These cargoes shall be trimmed according to the following criteria:

  • .1 the unevenness of the cargo surface measured as the vertical distance (Δh) between the highest and lowest levels of the cargo surface shall not exceed B/10, where B is the beam of the ship in metres, with a maximum allowable Δh = 2 m; or

  • .2 loading is carried out using trimming equipment approved by the competent authority.

Parent topic: Section 5 – Trimming procedures
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